bamford



2 Sheets-Sheet I. W. BAMFORD.

Heating Stove.

No. 62,726. Patented March 12, 1867.-

JLSII/ Box I I f 7 NJEIERS, PHOTO-LITHOGRAPHER. wAsumeTou. 0 0

2 Sheets-Sheet 2.

W. BAMFORD.

Patented March 12. 1867,

@lnitnb game {gaunt @ffirc,

WILLIAM BAMroRn, 0F MILWAUKE WISCONSIN,

Letters Patent No. 62,726 datcd Mathis, 1867; anteclated September 12,1866.

HEATING STOVE.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, WILLIAM Banronn, of the city and county of Milwaukee, in the State of Wisconsin, have invented certain new and useful Improvements in Hot-Air Chambers for Stoves, and I do hereby declare that the following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, making a part of this specification, in which Figure 1 is a vertical section of the chamber and the stove in which'it is placed in its proper position.

Figure 2, a perspective view of the chamber detached; and

Figure 3, a transverse section on the line O and D fig. 1.

Like letters refer to similar parts in all of the figures.

' The nature and object of my invention consist in constructing an upper and lower air-chamber connected together by air fines, so as to present a large amount of heating surfacqthrough which the air must pass in its passage from its entrance to its exit, and at the same time check the passage of the heat in the stove so as to produce eddies and cross-currents in such StOY8, l)y means of which a greater amount of heat is radiated from the stove than would be with the same amount of fuel if the air-chambers were not inserted; and also, by means of the great amount of heating surface presented to the air in its passage, pass it more rapidly through the chambers to the pipes or registers and in greater quantities by means of the rapidity of the currents; and in so suspending'the two air-chambcrs connected by tubes both above the fire-bozr' and so that the heated products ofcombustion will freely come in contact with all portions of the cylinders and tubes.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

The stove A is an ordinary sheet-iron stove, with cast base and cap, but may be made of any material and in any of the forms usually used for stoves designed simply for heating, as my invention may be applied to all heating stoves, except to base-burning ones, where the fuel is above the point of combustiou. My combined hot-airchamber, B O, and fines, c, are made in sizes to suit the dimensions of the stove to which it is applied, and so made as to leave a space of from one to three-fourths of one inch between the stove A and the chambers B and C. The bottom of the air-chamber ,B is inclined from the horizontal, as shown for coal stoves and for those where the space between the top of the door and top of the stove is short, otherwise the upper and lower ends of thechnmbcr are parallel. The distance between the plates of each of the cylindrical chambers B and C will in a measure depend upon the height of the stove, as will also the length of the pipes or flues c. The plates and bands of the. cylindrical air-chambers are usually made of sheet iron, but may be cast, and the lower one of B would perhaps be better made of cast iron, although not necessary. The flues or pipes c are made of sheet iron, and are from one to two inches in diameter, and in length to suit the height of the stove. I usually put in as many as can well'be put in, leaving spaces of about one-half to tln'ee-fourthsofono inch between the several pipes.

, In operation," the cold air passes into the lower chamber B from the outside, through the pipe'F, and, if it is desired to take the cold air lower down, the elbow G is added, but usually it will not be found necessary except when it is desired to carry the hot air some distance, or in a downward direction, through the pipes I and J. When the air enters the chamber B it comes in contact with the heating surfaces of that chamber and then passes through the air flucs c e and a into theupper chamber C, where it is still further heated, when it passes out through the pi es F and I, or either one of them, as may be desired. Both pipes are provided with registers, so that the current of hot air can be passed out at either one, at pleasure, or shut ofi" from both. The heat produced in the stove, with the smoke and other products of combustion, strikes first against the bottom of chamber B, and then passes around between it and the stove A, and then by cross-currents and eddies through and between the air flues a a and c; and to make this more efi'ectivo I insert a pipe, 6, through the centre of the lower chamber. The heated currents of thestove pass around and against the upper cylinder 0 and then out at the smoke pipe H. The combined chambers are supported by the pipes F and I and held in place by the pipe E, which passes through the cap of the stove. It may be further supported by rods attached to it and the stove. In some forms of stoves, particularly the oval form, it will be better to insert two pipes from the outside into the lower cylinder. v

l This arrangement of cylinder and fines can also be used in the pipe as a damper and air heater with great I I I advantage, either in addition to one inserted in the stove or when the stove is of such form that it cannot be inserted, as in cooking stoves. -Whenso used the opening at the top will .be omitted. I consider this a great improvement over the air heater heretofore patented tome and John F. Tate, as in this there is no'choking of the fines. I

Hiaving thus described my invention and its operation, what I claim as new, and desire to secure by Letters Patent, is I 1. The air-heating chamber, composed of an upper and lower cylinder connected by one or more air times and located entirely above the firebox, so as to bring all parts of the chamber and fiu'es in contact. with the heated products of combustion, substantially as set forth.

2. The combination and arrangement of the upper cylinder C and lower cylinder B, connected by the flue. c and located above the fire-box, with the pipe or flue F and the discharge pipe I or E, and stove case A, substantially as specified.

WILLIAM. BAMFORD.

Witnesses:

L..L. BOND, E. A. WEST. 

